baber/WOPTO huggingface dataset:
Patent DE-2019385-A1 (DE)
Title: Metal reinforced plastics
Inventor: ERDMANN-JESNITZER FRIEDRICH DR
Filed: 1970-04-22
Abstract: Strong, easily manufactured reinforced plastics by using as the reinforcing agent Zn or its alloy wire or whiskers, which have been pretreated with sulphonic acids, the acid forming a chemical bond with the metal and the plastic. Less pressure is required for the bonding. Suitable for car bodies, ships hulls, etc.
Patent DE-2039813-A1 (DE)
Title: Conc low-viscosity starch prepn - by reaction of aq starch suspension with alkylating and/or acylating agents
Inventor: GALINKE JOACHIM DIPL-CHEM DR
IPC: C08B31/10
Filed: 1970-08-11
Abstract: Starch prepns. with high solids content and low viscosity, stable for 1 - 2 years and which can be used for glues, adhesives, surface coatings, are obtained in one step by reacting in a high-speed, high shear force mixture any starch with an alkylating agent or acylating agent, benzyl or benzoyl chloride, at a rate of 0.5 - 1 mol. of agent per mole of anhydroglucose, pref. in the presence of NaOH or KOH at 72 - 78 degrees C or up to 150 degrees C in a closed vessel at a pH of 8 - 10. The pref. degree of substitution is 0.15 - 0.30. Prepns. have solids content of 20 - 50% and viscosities of 200 - 5,000 cP.
Patent DE-2058224-A1 (DE)
Title: Herbicidal trifluoromethyl-1,3-phenylene- - diamines
Inventor: G WOODS WILLIAM
IPC: A01N33/18
Filed: 1970-11-26
Abstract: Herbicidal trifluoromethyl-1, 3-phenylenediamines Compds. of gen. formula: (where R1 and R3 are H, alkyl, alkenyl, alkynyl, aralkyl or aryl; R2 and R4 are alkyl, alkenyl, alkynyl, aralkyl or aryl; and R1 - R2 and/or R3-R4 express a part f a heterocyclic having an alkylene linkage in the ring) are prepd. by reacting one or two 1 degrees or 2 degrees amines with a 2,4-dihalo-5-nitrobenzo trifluoride. A specific compd. is N'-methyl-N3, N3-di-n-propyl-4-nitro-6-trifluromethyl-1,3-phenylene diamine.
Patent DE-2110994-A1 (DE)
Title: Low-foaming rinsing fluids - for machine dish -washing contg propylene oxide adducts of non-reducing sugars
Inventor: GOETTE ERNST DIPL-CHEM DR
IPC: C11D1/66
Filed: 1971-03-08
Abstract: The neutral rinsing agents claimed in parent patent and based on propylene oxide adducts of water-soluble starch degradation products, are extended to cover adducts of propylene oxide on non-reducing sugars or sugar derivs., esp. sacchrose. Pref. adducts contain 5-10 pts. propylene oxide per part of sugar. They are suitable for use in dish-washing machines, have low foaming and good run-off properties and are physiologically acceptable.
Patent DE-2114239-A1 (DE)
Title: Furnace wall bricks - having improved mech strength and stability to temp changes
Inventor: FINK FERDINAND DR MONT
IPC: F23D14/16
Filed: 1971-03-24
Abstract: The bricks, manufactured from high grade clay materials and faced with fire resistant oxides, have open pores of 100 mu to 300 mu in diameter and their high temp. side, while being provided with feed channels on their opposite or fixing chamber side from which the combustion gas/air mixt. is being supplied. The open porosity is 25-40% and the area of the channels is >=10% of the sectional area of the brick. The radiation surface is coarse to increase emmissivity.
Patent DE-2131592-A1 (DE)
Title: Thread guide-roller bearing - air bearing between cooperating cylindrical sections bounded by conical surfaces
Inventor: STANEFF STEFAN
IPC: D02J1/22
Filed: 1971-06-25
Abstract: A thread guide roller esp. for draw twist or draw wind machines has a bore having a central cylindrical part and outer outwardly diverging conical parts on a stationary, centre of like shape, and an air supply, to constitute an air bearing.
Patent DE-2141029-A1 (DE)
Title: Refractory material based on electrocorundum and aluminium - phosphate binder - contg aluminium powder for normal temp hardening
Inventor: MUROW LEONID IONOWITSCH
IPC: C04B35/10
Filed: 1971-08-16
Abstract: Material esp. suitable for lining vacuum ovens consists of (in wt.%): electrocorundum 89.7-87.0, AlPO4 (as a binder) 10.0-12.0, and Al powder 0.3-1.0, due to the presence of Al powder, the material hardens at ambient temp. (without Al, heating to 500-800 degrees C is necessary). After 7 days, a strength up to 120-140 kg/cm2 is attained.
Patent DE-2141472-A1 (DE)
Title: Shuttle with thermoplastic core - adhered to hard phenolic resin sides using fabric intermediate lining
Inventor: TENHAGEN RUDOLF
IPC: D03J5/00
Filed: 1971-08-19
Abstract: Both lateral sliding surfaces of the thermoplastic core are covered with a thermosetting plastic. Pref. the hard phenolic resin is applied by melting the core sides, pressing cotton layer into the molten mass and allowing to cool and harden after which the phenolic resin layer is adhered onto the fabric.
Patent DE-2150008-A1 (DE)
Title: Herbicidal brominated phenyl ureas - prepd by bromination using hydrogen bromide or bromine and hydrogen peroxide
Inventor: DIETZ HANS-JUERGEN DIPL-CHEM D
IPC: C07C273/18
Filed: 1971-10-07
Abstract: Herbicidally active urea deriv. (where R1 is H, lower alkyl or alkoxy or halogen; R2 is H, lower alkyl or alkoxy and R3 is lower alkyl) are prepd. in sufficient purity to require no further purification before use, by brominating corresp. urea derivs. at 30-90 degrees C in suitable solvents, using molar ratios of (I) to HBr and H2O2 of 1:1 to 1.1:1. to 1.1. Pref. (I) are reacted with Br2 and H2O2 in molar ratio 1:0.5 to 0.55:0.5 to 0.55, and H2O2 is introduced together with or after completed addn.
Patent DE-2201020-A1 (DE)
Title: Sand mould coating - contg chromium oxide to reduce metal impregnation
Inventor: UTO YOSHIMITSU
IPC: B22C3/00
Filed: 1972-01-11
Abstract: Sand mould coating reducing impregnation of molten metal into mould and burning of sand onto the metal casting surface comprises 100 p.b.w. of a difficult to melt powder contg. 20-100% Cr2O3, 1-20 p.b.w. binder and 50-200 p.b.w. volatile solvent.
Patent DE-2201325-A1 (DE)
Title: Texturing synthetic filament yarn - using rotating false twist bush
Inventor: OLIVARI GUIDO
IPC: D02G1/02
Filed: 1972-01-12
Abstract: The yarns esp. of polyamide or polyester is heated to soften it and passed through the flase twist bush to crimp it, the yarn tension at the entry of the bush being 0.35-1.5 gm/den., the ratio of yarn tension at the entry and exit of the bush being 1.2-2.0; and the ratio of yarn speed through the bush to the peripheral speed of the bush being 0.3-6.0. Pref. the tension of the yarn is controlled by varying the inclination of the bush axis to the ayrn path between 15 degrees-90 degrees. After crimping the yarn is drawn and heat fixed, 70 denier yarn can be crimped at high throughput rates.
Patent DE-2228713-A1 (DE)
Title: Hot forming plastic material - with twin plates sepd by longitudinal webs, heated and vacuum formed
Inventor: MUELLER WILFRIED
IPC: B29C63/00
Filed: 1972-06-13
Abstract: The upper and lower plastic plates are organically coupled by uniformly spaced, longitudinal webs, on which the forming of the material occurs when heated to a plastic condition by a uniformly distributed vacuum force against a negative or positive model or without the use of a model.
Patent DE-2239748-A1 (DE)
Title: Wear-resistant bricks for rails in push-kilns - produced from ceramic materials and iron oxides
Inventor: SCHULZE EGON
IPC: C04B35/18
Filed: 1972-08-12
Abstract: Mixture of ceramic materials (corundum-alumina silicate mixture or other alumina-contg materials) and iron oxides or their sources (pref scale) is moulded under pressure and fired at about 1350 degrees C. The resulting rails (esp for push-kilns for steel billets ingots or blocks) have outstanding wear-resistance both in the relatively low temp range (700-900 degrees C) and in the high temp range (1300 - 1400 degrees C).
Patent DE-2242088-A1 (DE)
Title: Broken yarn tying device - reducing slack in tied yarn to prevent uneven bobbin winding
IPC: B65H69/04
Filed: 1972-08-26
Abstract: Yarns wound in cross-winding machines are tied following breaking and formation of too great a slack is prevented to avoid irregular bobbin winding by holding the broken yarn ends in the plane contg. the yarn path and deflecting them from the path towards the automatic tying device which is disposed closely adjacent the path to prevent formation of excessive slack in the yarn.
Patent DE-2248257-A1 (DE)
Title: 4-Amino-1,2,4-triazoles prepn - by reacting nitriles with hydrazine in the presence of sulphur (cpd)
Inventor: KOTONE AKIRA
IPC: C07D249/08
Filed: 1972-10-02
Abstract: Cpds. of formula (I): (where R is H, opt. unsatd. 1-17C aliphatic hydrocarbyl (opt. substd. by OH, N(R1)2, NO2, COOH, CHO, CONHNH2, NHCOR2, OR2, SH and/or SR2), or an alicyclic gp., a 6-18C uncondensed aromatic gp., a 10-14C condensed aromatic gp. or a 5- or 6-membered heterocyclic gp. (all opt. substd. by halogen, 1-8C alkyl, OH, NH2, N(R1)2, NO2, COOH, CHO, CONHNH2, NHCOR2, OR2, SH, SR2 and/or SO3H); R1 is H, 1-18C alkyl or aryl; R2 is 1-18C alkyl or aryl) are prepd. by reacting RCN with NH2NH2 in the presence of S, H2S and/or a cpd. capable of releasing H2S under the reaction conditions, pref. a metal (poly)sulphide, an aliphatic or aromatic mercaptan, a mercaptoalkanol, a mercapto acid, an aliphatic polysulphide, an aromatic disulphide, an amine hydrogen (poly)sulphide or a thioamide. Yields of >60% of high-purity (I) are obtained. Cpds. (I) are intermediates for dyes, pharmaceuticals and plastics, and are corrosion inhibitors and plastics additives.
Patent DE-2251579-A1 (DE)
Inventor: JACKSON LELAND B
IPC: G10L25/93
Filed: 1972-10-20
Abstract: An adaptive filter system for determining characteristics of an electrical input signal, such as resonant frequencies, anti-resonant frequencies, etc. which includes a plurality of anti-resonance circuits and/or resonance circuits coupled to an input signal, means for developing indicator signals indicate the deviation of the anti-resonant and/or resonant frequencies of the circuits from the anti-resonant and/or resonant frequencies of the input signal, and means for cross-correlating the output from at least one of the circuits with the indicator signals, and for generating correction signals as a function of the cross-correlation. The correction signals are fed to the circuits to vary the anti-resonant and/or resonant frequencies thereof so that the frequencies correspond to the respective resonant and/or anti-resonant frequencies in the input signal.
Patent DE-2264882-A1 (DE)
Title: Phosphate ester-epihalohydrin-N-methylol cpd. reaction prod. use - as flame retardant in printing pastes and textile finishes
Inventor: HOERSTER HERBERT DIPL CHEM
IPC: D06M15/433
Filed: 1972-03-25
Abstract: Reaction prods. (I) of a phosphoric acid cpd. of formula (R-O)n-P(=O)-X (in which R is 1-5C alkyl or haloalkyl, n = 0.5-2.5 X is OH or halogen), with 1,2-epihalohydrin and N-methylol cpds. (II) are incorporated in printing pastes, finishing or coating compsns. to give textiles a flame-retardant finish which is resistant to washing and dry cleaning. The compsn. can be used in textile finishes and also in flame-retardant printing pastes for incombustible textiles. Thus, it ensures retention of flame retardancy in glass fabrics after printing and also prevents detriment to the flame retardancy of other substrates.
Patent DE-2332463-A1 (DE)
Title: Light duty adjustable roller bearing - helical spring round shaft held in grooves in bearing shells
Inventor: SCHMID ERICH
IPC: F16C33/26
Filed: 1973-06-26
Abstract: A bearing for rotating shafts and also for use with axially moving connecting rods or push rods, is partic. useful in mass production of small machines where the bearing must be quickly adjusted after fitting of the shaft. The bearing also uses a small amount of bearing material and is therefore economical. In this design there is a helical spring made from bearing material round the shaft or rod, separating it from the bearing shells. The coil material of the helical spring has a round cross section. Alternatively the spring can be made from strip with a rounded rectangular cross section. There are notches in each of the shells in which the spring and shaft rests. The clearance between the shells is adjusted by two set screws.
Patent DE-2333622-A1 (DE)
Title: Turbogenerator rotor cap attachment with force relief on windings - has toothed retention ring in cap around rotor inside circular slot
Inventor: BLANK KARL
IPC: H02K3/51
Filed: 1973-07-02
Abstract: The rotor cap attachment for turbogenerators and other high-speed machines reduces the centrifugal forces on the rotor windings, and is mounted on the rotor end by shrink fitting over a circular slot which forms a circular cavity when the cap has been mounted. Axial slots are worked into the cap inner surface between the rotor face and the circular slot. A two-part retention ring is located in the rotor circular slot and has teeth whose pitch corresponds to the pitch of the slots in the rotor cap and whose axial dimensions are greater than the distance between the circular slot in the cap and the face of the cap opposite the rotor. After sliding the cap onto the rotor the retention ring is rotated by half a pitch w.r.t. the point at which the cap slid over the rotor.
Patent DE-2336103-A1 (DE)
Title: Powered support two-way jack control - plunger responds to nonreturn valve closure to bleed off residual pressure
Inventor: NERLICH GUENTER
IPC: E21D23/26
Filed: 1973-07-16
Abstract: Powered support frame two-way jack control rotates in its housing so as to connect a centre bore with sprung non-return valve function to the pressure medium feedline, and thus depending on the turn angle connect the feedline via a cross bore linked to the centre bore and a sprung packing sleeve to connections serving the sides of the jack, as in 2225196. The non-return valve is built into the lid which also contains the feedline connection so that the valve works through a bolt with a coaxially adjusting pressure piece inside the control. On its slotted endface furthest from the valve the pressure piece has a recess to take a longitudinally bored lever-controlled plunger. After the valve has closed, a differentiating surface provided on the head of the plunger close to the slotted end of the pressure piece lifts off this piece and leads off the residual fluid pressure through a drain which is linked up with the plunger bore and passes through the control to issue into the annular space between control and housing.
Patent DE-2338423-A1 (DE)
Title: High pressure pump with control arrgmt - avoids high pressure rises e.g. when used with spray guns which are suddenly closed
Inventor: KOERSGEN HEINZ-NORBERT
IPC: F04B49/24
Filed: 1973-07-28
Abstract: The arrangement is esp. for high pressure membrane pumps used for pumping viscous fluids such as paints or varnishes, and consists of a sliding control plunger by means of which a hydraulic connection is made between a suction space and an inlet bore. The inlet bore is parallel to the suction valve of the pump. The movement of the control plunger, by the pressure which builds up between the outlet valve of the pump and the air consuming equipment is carried out against the force of a spring.
Patent DE-2348187-A1 (DE)
Title: Sewing machine thread cutting device - with control lever tripping the main drive shaft and setting a release device acting on the cutter
Inventor: NAKAMURA SHIROJI
IPC: D05B73/12
Filed: 1973-09-25
Abstract: Sewing machine thread cutting device includes a control lever which controls the drive and tripping of the main drive shaft in a predetermined posn and which is associated with a release device reciprocated by a cutter cam during the last revolution of the main drive shaft prior to its tripping to actuate the thread cutting mechanism.
Patent DE-2355916-A1 (DE)
Title: DC-AC converter with bandpass filter - has triac switching capacitors to control filter resonant freq.
Inventor: HEINICKE HARALD
IPC: G05F1/66
Filed: 1973-11-08
Abstract: The DC/AC converter feeds a bandpass filter from its A.C. output. The A.C. output is coupled over a transformer to an LC resonant circuit consisting of a parallel coupled capacitor and inductor and the inductive part of the load. A series of triacs, or anti-parallel thyristor pairs has each of its triacs switching a capacitor across the resonant circuit to alter the bandpass filter resonant frequency in such a way that it remains constant as the load inductive part varies. The control circuit for the triacs contains a forwards-backwards counter and OR gate selection logic.
Patent DE-2357323-A1 (DE)
Title: Scan and hold voltage amplifying circuit - suitable for very high scan frequencies uses differential amplifier
Inventor: RATHGEBER MAX DIPL ING
IPC: G11C27/02
Filed: 1973-11-16
Abstract: The circuit has a differential amplifier with its positive input acting as line input, an earthed capacitor, a switch between the differential amplifier output and the capacitor and a second amplifier with its input connected to the capacitor and its output acting as line output. A second capacitor is connected between the negative input and the output of the differential amplifier and a resistor is connected between the negative input and the line output. The RC-element acts as a low-pass filter in the transmission frequency band between the line output and the negative input and as a high-pass filter between the differential amplifier output and the negative input.
Patent DE-2360522-A1 (DE)
Title: Sea water desalination plant - has two expansive evaporator stages and third in closed loop with coolant circulation
Inventor: WANKA EDWIN
IPC: C02F1/06
Filed: 1973-12-05
Abstract: A sea water desalination system which can also be used for treating industrial and municipal liq. waste is based on expensive evaporation. The heat exchanger which passes through the vapour condenser is connected to a closed loop supplied by a compressor with a coolant. The coolant circulates from a heat exchanger inside the final preheater to the compressor and through a restrictor for its expansion back to the heat exchanger in the vapour condenser. The energy consumption is thereby reduced considerably because the raw water need not be heated very much. The incrustation by scale is also much less; the lower temps. allow the use of less costly materials.
Patent DE-2361820-A1 (DE)
Title: Sand moulds of even hardness prodn. - by evenly penetrating the mould and volume with pressurised gas
Inventor: BUEHLER EUGEN DIPL ING
IPC: B22C15/10
Filed: 1973-12-12
Abstract: Appts. for forming sand moulds comprising at least one mould frame, one movably arranged pattern plate, one press die and a sand chamber includes at least one pressurized gas duct of large cross-section for creating a sudden surface press. gas action of the sand volume present in the sand chamber and also a plurality of pressurized gas ducts of smaller cross-sections discharging into the sand chamber and effecting a pressurized gas penetration of the sand volume located in the chamber. The gas admitted by one type of duct in a first press. stage still penetrates the sand chamber. When gas is admitted by the other type of duct during a second press. stage for a limited time.
Patent DE-2400900-A1 (DE)
Title: Refrigerated showcase for confectionery - has cold air inlets in vertical channels passing ends of shelves, and front outlet slots
IPC: F25D17/06
Filed: 1974-01-09
Abstract: Refrigerated showcase for storage and display of confectionery has superimposed supports in the upper part and an evaporator in the lower part, from which the circulating cold air can be conducted to the supports. The air inlet openings in the upper part for the air coming from the evaporator via a fan are fitted in vertical channels passing the ends of the supports. The air return slots are in the region of the forward longitudinal edge of the showcase. Minimal ambient air is entrained with the cooling air.
Patent DE-2408917-A1 (DE)
Title: Magnetic armature and coil fastener for contactors - has two angular sprung clamps with hooks at each free end for armature grooves
Inventor: SCHLAGER ROBERT ING GRAD
IPC: H01F5/02
Filed: 1974-02-25
Abstract: The fastening element is intended for screwless connection of a moving magnetic core and a coil in guide of the carriage of the switching device, such as a contactor which is insertable into recesses of the guide carriage. Two angular, sprung clamping latches (12) have each on their free ends (12f) a hook (12d) which engages grooves (15a, 15b) of the magnetic core (9) to be latched. Each latch has a locking lug (12b) which engages positively and firmly in a corresponding recess (13) of the guide carriage (6) under spring force. Preferably the grooves are arranged on either side of the outer pole shanks (22) of the magnetic core and the magnetic yoke rears (9a), at right angles to the core laminations. The grooves in the magnetic yoke rears may be on inclined plane (14) in relation to the outer pole shanks.
Patent DE-2410640-A1 (DE)
Title: Electronic engine starting and close down - involves circuits coupled to starter, ignition and fuel injection systems
Inventor: KRATZ ROBERT
IPC: F02N11/08
Filed: 1974-03-06
Abstract: An electronic circuit to start up and stop motor vehicle engines is coupled to the starter motor, ignition system and/or the fuel injection system. Two solenoids are linked to the starter motor via a timing circuit and there is a sensor for switching out the circuit. There is a starter button which is used to activate the system, bringing the battery into circuit via the ignition lock. On switching on the ignition the battery charge warning light is illuminated as usual. The entire starting sequence is performed automatically, using a set of diodes and relays.
Patent DE-2414372-A1 (DE)
Title: Turnstile - has arms on swivel mounted shaft which is connected to electromagnet and switch with controls
IPC: E06B11/08
Filed: 1974-03-26
Abstract: A swivel mounted shaft carries the arms of the turnstile and this shaft is linked to an electrically operated locking device which locks the swivel movement. The locking device consists of a piece of magnetic material positioned on the circumference of the shaft, an electromagnet which is stationary, a fixed switch for the electromagnet and controls to move the switch. The turning parts of magnetic material are made of soft iron and each arm of the turnstile has a soft iron part. The shaft is positioned in a fixed hollow shaft.
Patent DE-2415307-A1 (DE)
Title: Synchronising outputs from several computers running same programs - switches processing data at discrete points in time
Inventor: MANKE HOLGER
IPC: G06F11/18
Filed: 1974-03-27
Abstract: The invention relates to a process for synchronising the outputs of a number of computers which are running identical programs asynchronously, so that the outputs can be compared and control signals generated in conformity with the majority. The process consists in switching the same data for processing to all the computers only at discrete points in time, through a switching device. The computers report to a control when they have completed processing of the input data, so that the computers can receive a switching signal for synchronised output of the data to a majority-decision circuit through traffic distributors. Where the installation is for use in railway applications the circuits operate fail-safe techniques.